ABB RELION Series, Technical Manual

Page: 610 / 804

functions are designed according to the IEC 61850-7-4 standard with logical nodes
CILO, CSWI and XSWI/XCBR.
The circuit breaker and disconnector control functions have an operation counter for
closing and opening cycles. The counter value can be read and written remotely from
the place of operation or via the LHMI.
9.1.4 Operation principle
Status indication and validity check
The object state is defined by two digital inputs,
POSOPEN
and
POSCLOSE
, which
are also available as outputs
OPENPOS
and
CLOSEPOS
together with the
OKPOS
according to Table 628 . The debouncing and short disturbances in an input are
eliminated by filtering. The binary input filtering time can be adjusted separately for
each digital input used by the function block. The validity of the digital inputs that
indicate the object state is used as additional information in indications and event
logging. The reporting of faulty or intermediate position of the apparatus occurs after
the
Event delay setting, assuming that the circuit breaker is still in a corresponding
state.
Table 628: Status indication
Input Status Output
POSOPEN POSCLOSE POSITION
(Monitored
data)
OKPOS OPENPOS CLOSEPOS
1=True 0=False 1=Open 1=True 1=True 0=False
0=False 1=True 2=Closed 1=True 0=False 1=True
1=True 1=True 3=Faulty/Bad
(11)
0=False 0=False 0=False
0=False 0=False 0=Intermediat
e (00)
0=False 0=False 0=False
Enabling and blocking
CBXCBR and DCXSWI have an enabling and blocking functionality for interlocking
and synchrocheck purposes.
Circuit breaker control CBXCBR
Normally, the CB closing is enabled (that is,
CLOSE_ENAD
signal is TRUE) by
activating both
ENA_CLOSE
and
SYNC_OK
inputs. Typically, the
ENA_CLOSE
comes from the interlocking, and
SYNC_OK
comes from the synchronism and
energizing check. The input
SYNC_ITL_BYP
can be used for bypassing this control.
The
SYNC_ITL_BYP
input can be used to activate
CLOSE_ENAD
discarding the
ENA_CLOSE
and
SYNC_OK
input states. However, the
BLK_CLOSE
input always
blocks the
CLOSE_ENAD
output.
Section 9
1MRS758755 A
Control functions
604 REC615 and RER615
Technical Manual